How useful is Runerigus in Pokémon Sword and Shield?

Runerigus is definitely worth its complicated evolution method, because, not only does it look cool, it's a pretty useful Pokémon.

It can learn a variety of powerful ghost, ground and psychic-moves, which can make it incredibly useful for the later stages of the game. This includes the ground-type move Earthquake and Shadow Ball - a ghost type move.

If you're playing Pokémon Sword and are having trouble with the fourth, fighting-type gym, then Runerigus could be your saviour, since its immune to fighting-type moves.

Runeerigus can also use the move Mean Look, which will prevent wild Pokémon from running away. This is great for when your adding the more elusive Pokémon to your Pokédex.